/*M///////////////////////////////////////////////////////////////////////////////////////
//
//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
//  By downloading, copying, installing or using the software you agree to this
license.
//  If you do not agree to this license, do not download, install,
//  copy or use the software.
//
//
//                          License Agreement
//                For Open Source Computer Vision Library
//
// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
// Copyright (C) 2013, OpenCV Foundation, all rights reserved.
// Copyright (C) 2015, Itseez Inc., all rights reserved.
// Third party copyrights are property of their respective owners.
//
// Redistribution and use in source and binary forms, with or without
modification,
// are permitted provided that the following conditions are met:
//
//   * Redistribution's of source code must retain the above copyright notice,
//     this list of conditions and the following disclaimer.
//
//   * Redistribution's in binary form must reproduce the above copyright
notice,
//     this list of conditions and the following disclaimer in the documentation
//     and/or other materials provided with the distribution.
//
//   * The name of the copyright holders may not be used to endorse or promote
products
//     derived from this software without specific prior written permission.
//
// This software is provided by the copyright holders and contributors "as is"
and
// any express or implied warranties, including, but not limited to, the implied
// warranties of merchantability and fitness for a particular purpose are
disclaimed.
// In no event shall the Intel Corporation or contributors be liable for any
direct,
// indirect, incidental, special, exemplary, or consequential damages
// (including, but not limited to, procurement of substitute goods or services;
// loss of use, data, or profits; or business interruption) however caused
// and on any theory of liability, whether in contract, strict liability,
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// the use of this software, even if advised of the possibility of such damage.
//
//M*/

#ifndef OPENCV_CORE_CVDEF_H
#define OPENCV_CORE_CVDEF_H

#include "opencv2/core/version.hpp"

//! @addtogroup core_utils
//! @{

#ifdef OPENCV_INCLUDE_PORT_FILE  // User-provided header file with custom
                                 // platform configuration
#include OPENCV_INCLUDE_PORT_FILE
#endif

#if !defined CV_DOXYGEN && !defined CV_IGNORE_DEBUG_BUILD_GUARD
#if (defined(_MSC_VER) && (defined(DEBUG) || defined(_DEBUG))) || \
    (defined(_GLIBCXX_DEBUG) || defined(_GLIBCXX_DEBUG_PEDANTIC))
// Guard to prevent using of binary incompatible binaries / runtimes
// https://github.com/opencv/opencv/pull/9161
#define CV__DEBUG_NS_BEGIN      \
    namespace debug_build_guard \
    {
#define CV__DEBUG_NS_END }
namespace cv
{
namespace debug_build_guard
{
}
using namespace debug_build_guard;
}  // namespace cv
#endif
#endif

#ifndef CV__DEBUG_NS_BEGIN
#define CV__DEBUG_NS_BEGIN
#define CV__DEBUG_NS_END
#endif

#ifdef __OPENCV_BUILD
#include "cvconfig.h"
#endif

#ifndef __CV_EXPAND
#define __CV_EXPAND(x) x
#endif

#ifndef __CV_CAT
#define __CV_CAT__(x, y) x##y
#define __CV_CAT_(x, y) __CV_CAT__(x, y)
#define __CV_CAT(x, y) __CV_CAT_(x, y)
#endif

#define __CV_VA_NUM_ARGS_HELPER(_1, _2, _3, _4, _5, _6, _7, _8, _9, _10, N, ...) N
#define __CV_VA_NUM_ARGS(...) \
    __CV_EXPAND(__CV_VA_NUM_ARGS_HELPER(__VA_ARGS__, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0))

#ifdef CV_Func
// keep current value (through OpenCV port file)
#elif defined __GNUC__ || (defined(__cpluscplus) && (__cpluscplus >= 201103))
#define CV_Func __func__
#elif defined __clang__ && (__clang_minor__ * 100 + __clang_major__ >= 305)
#define CV_Func __func__
#elif defined(__STDC_VERSION__) && (__STDC_VERSION >= 199901)
#define CV_Func __func__
#elif defined _MSC_VER
#define CV_Func __FUNCTION__
#elif defined(__INTEL_COMPILER) && (_INTEL_COMPILER >= 600)
#define CV_Func __FUNCTION__
#elif defined __IBMCPP__ && __IBMCPP__ >= 500
#define CV_Func __FUNCTION__
#elif defined __BORLAND__ && (__BORLANDC__ >= 0x550)
#define CV_Func __FUNC__
#else
#define CV_Func "<unknown>"
#endif

//! @cond IGNORED

//////////////// static assert /////////////////
#define CVAUX_CONCAT_EXP(a, b) a##b
#define CVAUX_CONCAT(a, b) CVAUX_CONCAT_EXP(a, b)

#if defined(__clang__)
#ifndef __has_extension
#define __has_extension __has_feature /* compatibility, for older versions of clang */
#endif
#if __has_extension(cxx_static_assert)
#define CV_StaticAssert(condition, reason) static_assert((condition), reason " " #condition)
#elif __has_extension(c_static_assert)
#define CV_StaticAssert(condition, reason) _Static_assert((condition), reason " " #condition)
#endif
#elif defined(__GNUC__)
#if (defined(__GXX_EXPERIMENTAL_CXX0X__) || __cplusplus >= 201103L)
#define CV_StaticAssert(condition, reason) static_assert((condition), reason " " #condition)
#endif
#elif defined(_MSC_VER)
#if _MSC_VER >= 1600 /* MSVC 10 */
#define CV_StaticAssert(condition, reason) static_assert((condition), reason " " #condition)
#endif
#endif
#ifndef CV_StaticAssert
#if !defined(__clang__) && defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__ > 302)
#define CV_StaticAssert(condition, reason)                                           \
    ({                                                                               \
        extern int __attribute__((error("CV_StaticAssert: " reason " " #condition))) \
        CV_StaticAssert();                                                           \
        ((condition) ? 0 : CV_StaticAssert());                                       \
    })
#else
namespace cv
{
template <bool x>
struct CV_StaticAssert_failed;
template <>
struct CV_StaticAssert_failed<true>
{
    enum
    {
        val = 1
    };
};
template <int x>
struct CV_StaticAssert_test
{
};
}  // namespace cv
#define CV_StaticAssert(condition, reason)                         \
    typedef cv::CV_StaticAssert_test<sizeof(                       \
        cv::CV_StaticAssert_failed<static_cast<bool>(condition)>)> \
    CVAUX_CONCAT(CV_StaticAssert_failed_at_, __LINE__)
#endif
#endif

// Suppress warning "-Wdeprecated-declarations" / C4996
#if defined(_MSC_VER)
#define CV_DO_PRAGMA(x) __pragma(x)
#elif defined(__GNUC__)
#define CV_DO_PRAGMA(x) _Pragma(#x)
#else
#define CV_DO_PRAGMA(x)
#endif

#ifdef _MSC_VER
#define CV_SUPPRESS_DEPRECATED_START \
    CV_DO_PRAGMA(warning(push))      \
    CV_DO_PRAGMA(warning(disable : 4996))
#define CV_SUPPRESS_DEPRECATED_END CV_DO_PRAGMA(warning(pop))
#elif defined(__clang__) || ((__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__ > 405))
#define CV_SUPPRESS_DEPRECATED_START  \
    CV_DO_PRAGMA(GCC diagnostic push) \
    CV_DO_PRAGMA(GCC diagnostic ignored "-Wdeprecated-declarations")
#define CV_SUPPRESS_DEPRECATED_END CV_DO_PRAGMA(GCC diagnostic pop)
#else
#define CV_SUPPRESS_DEPRECATED_START
#define CV_SUPPRESS_DEPRECATED_END
#endif

#define CV_UNUSED(name) (void)name

//! @endcond

// undef problematic defines sometimes defined by system headers (windows.h in
// particular)
#undef small
#undef min
#undef max
#undef abs
#undef Complex

#if defined __cplusplus
#include <limits>
#else
#include <limits.h>
#endif

#include "opencv2/core/hal/interface.h"

#if defined __ICL
#define CV_ICC __ICL
#elif defined __ICC
#define CV_ICC __ICC
#elif defined __ECL
#define CV_ICC __ECL
#elif defined __ECC
#define CV_ICC __ECC
#elif defined __INTEL_COMPILER
#define CV_ICC __INTEL_COMPILER
#endif

#ifndef CV_INLINE
#if defined __cplusplus
#define CV_INLINE static inline
#elif defined _MSC_VER
#define CV_INLINE __inline
#else
#define CV_INLINE static
#endif
#endif

#ifndef CV_ALWAYS_INLINE
#if defined(__GNUC__) && (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1))
#define CV_ALWAYS_INLINE inline __attribute__((always_inline))
#elif defined(_MSC_VER)
#define CV_ALWAYS_INLINE __forceinline
#else
#define CV_ALWAYS_INLINE inline
#endif
#endif

#if defined CV_DISABLE_OPTIMIZATION || (defined CV_ICC && !defined CV_ENABLE_UNROLLED)
#define CV_ENABLE_UNROLLED 0
#else
#define CV_ENABLE_UNROLLED 1
#endif

#ifdef __GNUC__
#define CV_DECL_ALIGNED(x) __attribute__((aligned(x)))
#elif defined _MSC_VER
#define CV_DECL_ALIGNED(x) __declspec(align(x))
#else
#define CV_DECL_ALIGNED(x)
#endif

/* CPU features and intrinsics support */
#define CV_CPU_NONE 0
#define CV_CPU_MMX 1
#define CV_CPU_SSE 2
#define CV_CPU_SSE2 3
#define CV_CPU_SSE3 4
#define CV_CPU_SSSE3 5
#define CV_CPU_SSE4_1 6
#define CV_CPU_SSE4_2 7
#define CV_CPU_POPCNT 8
#define CV_CPU_FP16 9
#define CV_CPU_AVX 10
#define CV_CPU_AVX2 11
#define CV_CPU_FMA3 12

#define CV_CPU_AVX_512F 13
#define CV_CPU_AVX_512BW 14
#define CV_CPU_AVX_512CD 15
#define CV_CPU_AVX_512DQ 16
#define CV_CPU_AVX_512ER 17
#define CV_CPU_AVX_512IFMA512 18  // deprecated
#define CV_CPU_AVX_512IFMA 18
#define CV_CPU_AVX_512PF 19
#define CV_CPU_AVX_512VBMI 20
#define CV_CPU_AVX_512VL 21
#define CV_CPU_AVX_512VBMI2 22
#define CV_CPU_AVX_512VNNI 23
#define CV_CPU_AVX_512BITALG 24
#define CV_CPU_AVX_512VPOPCNTDQ 25
#define CV_CPU_AVX_5124VNNIW 26
#define CV_CPU_AVX_5124FMAPS 27

#define CV_CPU_NEON 100
#define CV_CPU_NEON_DOTPROD 101
#define CV_CPU_NEON_FP16 102
#define CV_CPU_NEON_BF16 103

#define CV_CPU_MSA 150

#define CV_CPU_RISCVV 170

#define CV_CPU_VSX 200
#define CV_CPU_VSX3 201

#define CV_CPU_RVV 210

#define CV_CPU_LSX 230
#define CV_CPU_LASX 231

// CPU features groups
#define CV_CPU_AVX512_SKX 256
#define CV_CPU_AVX512_COMMON 257
#define CV_CPU_AVX512_KNL 258
#define CV_CPU_AVX512_KNM 259
#define CV_CPU_AVX512_CNL 260
#define CV_CPU_AVX512_CLX 261
#define CV_CPU_AVX512_ICL 262

// when adding to this list remember to update the following enum
#define CV_HARDWARE_MAX_FEATURE 512

/** @brief Available CPU features.
 */
enum CpuFeatures
{
    CPU_MMX = 1,
    CPU_SSE = 2,
    CPU_SSE2 = 3,
    CPU_SSE3 = 4,
    CPU_SSSE3 = 5,
    CPU_SSE4_1 = 6,
    CPU_SSE4_2 = 7,
    CPU_POPCNT = 8,
    CPU_FP16 = 9,
    CPU_AVX = 10,
    CPU_AVX2 = 11,
    CPU_FMA3 = 12,

    CPU_AVX_512F = 13,
    CPU_AVX_512BW = 14,
    CPU_AVX_512CD = 15,
    CPU_AVX_512DQ = 16,
    CPU_AVX_512ER = 17,
    CPU_AVX_512IFMA512 = 18,  // deprecated
    CPU_AVX_512IFMA = 18,
    CPU_AVX_512PF = 19,
    CPU_AVX_512VBMI = 20,
    CPU_AVX_512VL = 21,
    CPU_AVX_512VBMI2 = 22,
    CPU_AVX_512VNNI = 23,
    CPU_AVX_512BITALG = 24,
    CPU_AVX_512VPOPCNTDQ = 25,
    CPU_AVX_5124VNNIW = 26,
    CPU_AVX_5124FMAPS = 27,

    CPU_NEON = 100,
    CPU_NEON_DOTPROD = 101,
    CPU_NEON_FP16 = 102,
    CPU_NEON_BF16 = 103,

    CPU_MSA = 150,

    CPU_RISCVV = 170,

    CPU_VSX = 200,
    CPU_VSX3 = 201,

    CPU_RVV = 210,

    CPU_LSX = 230,
    CPU_LASX = 231,

    CPU_AVX512_SKX = 256,     //!< Skylake-X with AVX-512F/CD/BW/DQ/VL
    CPU_AVX512_COMMON = 257,  //!< Common instructions AVX-512F/CD for all CPUs
                              //!< that support AVX-512
    CPU_AVX512_KNL = 258,     //!< Knights Landing with AVX-512F/CD/ER/PF
    CPU_AVX512_KNM = 259,     //!< Knights Mill with AVX-512F/CD/ER/PF/4FMAPS/4VNNIW/VPOPCNTDQ
    CPU_AVX512_CNL = 260,     //!< Cannon Lake with AVX-512F/CD/BW/DQ/VL/IFMA/VBMI
    CPU_AVX512_CLX = 261,     //!< Cascade Lake with AVX-512F/CD/BW/DQ/VL/VNNI
    CPU_AVX512_ICL = 262,     //!< Ice Lake with
                              //!< AVX-512F/CD/BW/DQ/VL/IFMA/VBMI/VNNI/VBMI2/BITALG/VPOPCNTDQ

    CPU_MAX_FEATURE = 512  // see CV_HARDWARE_MAX_FEATURE
};

#include "cv_cpu_dispatch.h"

#if !defined(CV_STRONG_ALIGNMENT) && defined(__arm__) && \
    !(defined(__aarch64__) || defined(_M_ARM64))
// int*, int64* should be propertly aligned pointers on ARMv7
#define CV_STRONG_ALIGNMENT 1
#endif
#if !defined(CV_STRONG_ALIGNMENT)
#define CV_STRONG_ALIGNMENT 0
#endif

/* fundamental constants */
#define CV_PI 3.1415926535897932384626433832795
#define CV_2PI 6.283185307179586476925286766559
#define CV_LOG2 0.69314718055994530941723212145818

#if defined __ARM_FP16_FORMAT_IEEE && !defined __CUDACC__
#define CV_FP16_TYPE 1
#else
#define CV_FP16_TYPE 0
#endif

typedef union Cv16suf
{
    short i;
    ushort u;
#if CV_FP16_TYPE
    __fp16 h;
#endif
} Cv16suf;

typedef union Cv32suf
{
    int i;
    unsigned u;
    float f;
} Cv32suf;

typedef union Cv64suf
{
    int64 i;
    uint64 u;
    double f;
} Cv64suf;

#ifndef OPENCV_ABI_COMPATIBILITY
#define OPENCV_ABI_COMPATIBILITY 400
#endif

#ifdef __OPENCV_BUILD
#define DISABLE_OPENCV_3_COMPATIBILITY
#define OPENCV_DISABLE_DEPRECATED_COMPATIBILITY
#endif

#ifndef CV_EXPORTS
#if (defined _WIN32 || defined WINCE || defined __CYGWIN__) && defined(CVAPI_EXPORTS)
#define CV_EXPORTS __declspec(dllexport)
#elif defined __GNUC__ && __GNUC__ >= 4 && (defined(CVAPI_EXPORTS) || defined(__APPLE__))
#define CV_EXPORTS __attribute__((visibility("default")))
#endif
#endif

#ifndef CV_EXPORTS
#define CV_EXPORTS
#endif

#ifdef _MSC_VER
#define CV_EXPORTS_TEMPLATE
#else
#define CV_EXPORTS_TEMPLATE CV_EXPORTS
#endif

#ifndef CV_DEPRECATED
#if defined(__GNUC__)
#define CV_DEPRECATED __attribute__((deprecated))
#elif defined(_MSC_VER)
#define CV_DEPRECATED __declspec(deprecated)
#else
#define CV_DEPRECATED
#endif
#endif

#ifndef CV_DEPRECATED_EXTERNAL
#if defined(__OPENCV_BUILD)
#define CV_DEPRECATED_EXTERNAL /* nothing */
#else
#define CV_DEPRECATED_EXTERNAL CV_DEPRECATED
#endif
#endif

#ifndef CV_EXTERN_C
#ifdef __cplusplus
#define CV_EXTERN_C extern "C"
#else
#define CV_EXTERN_C
#endif
#endif

/* special informative macros for wrapper generators */
#define CV_EXPORTS_W CV_EXPORTS
#define CV_EXPORTS_W_SIMPLE CV_EXPORTS
#define CV_EXPORTS_AS(synonym) CV_EXPORTS
#define CV_EXPORTS_W_MAP CV_EXPORTS
#define CV_EXPORTS_W_PARAMS CV_EXPORTS
#define CV_IN_OUT
#define CV_OUT
#define CV_PROP
#define CV_PROP_RW
#define CV_WRAP
#define CV_WRAP_AS(synonym)
#define CV_WRAP_MAPPABLE(mappable)
#define CV_WRAP_PHANTOM(phantom_header)
#define CV_WRAP_DEFAULT(val)

/****************************************************************************************\
*                                  Matrix type (Mat) *
\****************************************************************************************/

#define CV_MAT_CN_MASK ((CV_CN_MAX - 1) << CV_CN_SHIFT)
#define CV_MAT_CN(flags) ((((flags)&CV_MAT_CN_MASK) >> CV_CN_SHIFT) + 1)
#define CV_MAT_TYPE_MASK (CV_DEPTH_MAX * CV_CN_MAX - 1)
#define CV_MAT_TYPE(flags) ((flags)&CV_MAT_TYPE_MASK)
#define CV_MAT_CONT_FLAG_SHIFT 14
#define CV_MAT_CONT_FLAG (1 << CV_MAT_CONT_FLAG_SHIFT)
#define CV_IS_MAT_CONT(flags) ((flags)&CV_MAT_CONT_FLAG)
#define CV_IS_CONT_MAT CV_IS_MAT_CONT
#define CV_SUBMAT_FLAG_SHIFT 15
#define CV_SUBMAT_FLAG (1 << CV_SUBMAT_FLAG_SHIFT)
#define CV_IS_SUBMAT(flags) ((flags)&CV_MAT_SUBMAT_FLAG)

/** Size of each channel item,
   0x28442211 = 0010 1000 0100 0100 0010 0010 0001 0001 ~ array of
   sizeof(arr_type_elem) */
#define CV_ELEM_SIZE1(type) ((0x28442211 >> CV_MAT_DEPTH(type) * 4) & 15)

#define CV_ELEM_SIZE(type) (CV_MAT_CN(type) * CV_ELEM_SIZE1(type))

#ifndef MIN
#define MIN(a, b) ((a) > (b) ? (b) : (a))
#endif

#ifndef MAX
#define MAX(a, b) ((a) < (b) ? (b) : (a))
#endif

///////////////////////////////////////// Enum operators
//////////////////////////////////////////

/**

Provides compatibility operators for both classical and C++11 enum classes,
as well as exposing the C++11 enum class members for backwards compatibility

@code
    // Provides operators required for flag enums
    CV_ENUM_FLAGS(AccessFlag)

    // Exposes the listed members of the enum class AccessFlag to the current
namespace CV_ENUM_CLASS_EXPOSE(AccessFlag, ACCESS_READ [, ACCESS_WRITE [, ...]
]);
@endcode
*/

#define __CV_ENUM_CLASS_EXPOSE_1(EnumType, MEMBER_CONST) \
    static const EnumType MEMBER_CONST = EnumType::MEMBER_CONST;

#define __CV_ENUM_CLASS_EXPOSE_2(EnumType, MEMBER_CONST, ...) \
    __CV_ENUM_CLASS_EXPOSE_1(EnumType, MEMBER_CONST);         \
    __CV_EXPAND(__CV_ENUM_CLASS_EXPOSE_1(EnumType, __VA_ARGS__));

#define __CV_ENUM_CLASS_EXPOSE_3(EnumType, MEMBER_CONST, ...) \
    __CV_ENUM_CLASS_EXPOSE_1(EnumType, MEMBER_CONST);         \
    __CV_EXPAND(__CV_ENUM_CLASS_EXPOSE_2(EnumType, __VA_ARGS__));

#define __CV_ENUM_CLASS_EXPOSE_4(EnumType, MEMBER_CONST, ...) \
    __CV_ENUM_CLASS_EXPOSE_1(EnumType, MEMBER_CONST);         \
    __CV_EXPAND(__CV_ENUM_CLASS_EXPOSE_3(EnumType, __VA_ARGS__));

#define __CV_ENUM_CLASS_EXPOSE_5(EnumType, MEMBER_CONST, ...) \
    __CV_ENUM_CLASS_EXPOSE_1(EnumType, MEMBER_CONST);         \
    __CV_EXPAND(__CV_ENUM_CLASS_EXPOSE_4(EnumType, __VA_ARGS__));

#define __CV_ENUM_CLASS_EXPOSE_6(EnumType, MEMBER_CONST, ...) \
    __CV_ENUM_CLASS_EXPOSE_1(EnumType, MEMBER_CONST);         \
    __CV_EXPAND(__CV_ENUM_CLASS_EXPOSE_5(EnumType, __VA_ARGS__));

#define __CV_ENUM_CLASS_EXPOSE_7(EnumType, MEMBER_CONST, ...) \
    __CV_ENUM_CLASS_EXPOSE_1(EnumType, MEMBER_CONST);         \
    __CV_EXPAND(__CV_ENUM_CLASS_EXPOSE_6(EnumType, __VA_ARGS__));

#define __CV_ENUM_CLASS_EXPOSE_8(EnumType, MEMBER_CONST, ...) \
    __CV_ENUM_CLASS_EXPOSE_1(EnumType, MEMBER_CONST);         \
    __CV_EXPAND(__CV_ENUM_CLASS_EXPOSE_7(EnumType, __VA_ARGS__));

#define __CV_ENUM_CLASS_EXPOSE_9(EnumType, MEMBER_CONST, ...) \
    __CV_ENUM_CLASS_EXPOSE_1(EnumType, MEMBER_CONST);         \
    __CV_EXPAND(__CV_ENUM_CLASS_EXPOSE_8(EnumType, __VA_ARGS__));

#define __CV_ENUM_FLAGS_LOGICAL_NOT(EnumType)                        \
    static inline bool operator!(const EnumType &val)                \
    {                                                                \
        typedef std::underlying_type<EnumType>::type UnderlyingType; \
        return !static_cast<UnderlyingType>(val);                    \
    }

#define __CV_ENUM_FLAGS_LOGICAL_NOT_EQ(Arg1Type, Arg2Type)              \
    static inline bool operator!=(const Arg1Type &a, const Arg2Type &b) \
    {                                                                   \
        return static_cast<int>(a) != static_cast<int>(b);              \
    }

#define __CV_ENUM_FLAGS_LOGICAL_EQ(Arg1Type, Arg2Type)                  \
    static inline bool operator==(const Arg1Type &a, const Arg2Type &b) \
    {                                                                   \
        return static_cast<int>(a) == static_cast<int>(b);              \
    }

#define __CV_ENUM_FLAGS_BITWISE_NOT(EnumType)                            \
    static inline EnumType operator~(const EnumType &val)                \
    {                                                                    \
        typedef std::underlying_type<EnumType>::type UnderlyingType;     \
        return static_cast<EnumType>(~static_cast<UnderlyingType>(val)); \
    }

#define __CV_ENUM_FLAGS_BITWISE_OR(EnumType, Arg1Type, Arg2Type)           \
    static inline EnumType operator|(const Arg1Type &a, const Arg2Type &b) \
    {                                                                      \
        typedef std::underlying_type<EnumType>::type UnderlyingType;       \
        return static_cast<EnumType>(static_cast<UnderlyingType>(a) |      \
                                     static_cast<UnderlyingType>(b));      \
    }

#define __CV_ENUM_FLAGS_BITWISE_AND(EnumType, Arg1Type, Arg2Type)          \
    static inline EnumType operator&(const Arg1Type &a, const Arg2Type &b) \
    {                                                                      \
        typedef std::underlying_type<EnumType>::type UnderlyingType;       \
        return static_cast<EnumType>(static_cast<UnderlyingType>(a) &      \
                                     static_cast<UnderlyingType>(b));      \
    }

#define __CV_ENUM_FLAGS_BITWISE_XOR(EnumType, Arg1Type, Arg2Type)          \
    static inline EnumType operator^(const Arg1Type &a, const Arg2Type &b) \
    {                                                                      \
        typedef std::underlying_type<EnumType>::type UnderlyingType;       \
        return static_cast<EnumType>(static_cast<UnderlyingType>(a) ^      \
                                     static_cast<UnderlyingType>(b));      \
    }

#define __CV_ENUM_FLAGS_BITWISE_OR_EQ(EnumType, Arg1Type)                               \
    static inline EnumType &operator|=(EnumType &_this, const Arg1Type &val)            \
    {                                                                                   \
        _this = static_cast<EnumType>(static_cast<int>(_this) | static_cast<int>(val)); \
        return _this;                                                                   \
    }

#define __CV_ENUM_FLAGS_BITWISE_AND_EQ(EnumType, Arg1Type)                              \
    static inline EnumType &operator&=(EnumType &_this, const Arg1Type &val)            \
    {                                                                                   \
        _this = static_cast<EnumType>(static_cast<int>(_this) & static_cast<int>(val)); \
        return _this;                                                                   \
    }

#define __CV_ENUM_FLAGS_BITWISE_XOR_EQ(EnumType, Arg1Type)                              \
    static inline EnumType &operator^=(EnumType &_this, const Arg1Type &val)            \
    {                                                                                   \
        _this = static_cast<EnumType>(static_cast<int>(_this) ^ static_cast<int>(val)); \
        return _this;                                                                   \
    }

#define CV_ENUM_CLASS_EXPOSE(EnumType, ...) \
    __CV_EXPAND(                            \
        __CV_CAT(__CV_ENUM_CLASS_EXPOSE_, __CV_VA_NUM_ARGS(__VA_ARGS__))(EnumType, __VA_ARGS__));

#define CV_ENUM_FLAGS(EnumType)                               \
    __CV_ENUM_FLAGS_LOGICAL_NOT(EnumType)                     \
    __CV_ENUM_FLAGS_LOGICAL_EQ(EnumType, int)                 \
    __CV_ENUM_FLAGS_LOGICAL_NOT_EQ(EnumType, int)             \
                                                              \
    __CV_ENUM_FLAGS_BITWISE_NOT(EnumType)                     \
    __CV_ENUM_FLAGS_BITWISE_OR(EnumType, EnumType, EnumType)  \
    __CV_ENUM_FLAGS_BITWISE_AND(EnumType, EnumType, EnumType) \
    __CV_ENUM_FLAGS_BITWISE_XOR(EnumType, EnumType, EnumType) \
                                                              \
    __CV_ENUM_FLAGS_BITWISE_OR_EQ(EnumType, EnumType)         \
    __CV_ENUM_FLAGS_BITWISE_AND_EQ(EnumType, EnumType)        \
    __CV_ENUM_FLAGS_BITWISE_XOR_EQ(EnumType, EnumType)

/****************************************************************************************\
*                                    static analysys *
\****************************************************************************************/

// In practice, some macro are not processed correctly (noreturn is not
// detected). We need to use simplified definition for them.
#ifndef CV_STATIC_ANALYSIS
#if defined(__KLOCWORK__) || defined(__clang_analyzer__) || defined(__COVERITY__)
#define CV_STATIC_ANALYSIS 1
#endif
#else
#if defined(CV_STATIC_ANALYSIS) && !(__CV_CAT(1, CV_STATIC_ANALYSIS) == 1)  // defined and not empty
#if 0 == CV_STATIC_ANALYSIS
#undef CV_STATIC_ANALYSIS
#endif
#endif
#endif

/****************************************************************************************\
*                                    Thread sanitizer *
\****************************************************************************************/
#ifndef CV_THREAD_SANITIZER
#if defined(__has_feature)
#if __has_feature(thread_sanitizer)
#define CV_THREAD_SANITIZER
#endif
#endif
#endif

/****************************************************************************************\
*          exchange-add operation for atomic operations on reference counters *
\****************************************************************************************/

#ifdef CV_XADD
// allow to use user-defined macro
#elif defined __GNUC__ || defined __clang__
#if defined __clang__ && __clang_major__ >= 3 && !defined __ANDROID__ && \
    !defined __EMSCRIPTEN__ && !defined(__CUDACC__) && !defined __INTEL_COMPILER
#ifdef __ATOMIC_ACQ_REL
#define CV_XADD(addr, delta) __c11_atomic_fetch_add((_Atomic(int) *)(addr), delta, __ATOMIC_ACQ_REL)
#else
#define CV_XADD(addr, delta) __atomic_fetch_add((_Atomic(int) *)(addr), delta, 4)
#endif
#else
#if defined __ATOMIC_ACQ_REL && !defined __clang__
// version for gcc >= 4.7
#define CV_XADD(addr, delta) \
    (int)__atomic_fetch_add((unsigned *)(addr), (unsigned)(delta), __ATOMIC_ACQ_REL)
#else
#define CV_XADD(addr, delta) (int)__sync_fetch_and_add((unsigned *)(addr), (unsigned)(delta))
#endif
#endif
#elif defined _MSC_VER && !defined RC_INVOKED
#include <intrin.h>
#define CV_XADD(addr, delta) (int)_InterlockedExchangeAdd((long volatile *)addr, delta)
#else
#ifdef OPENCV_FORCE_UNSAFE_XADD
CV_INLINE int CV_XADD(int *addr, int delta)
{
    int tmp = *addr;
    *addr += delta;
    return tmp;
}
#else
#error \
    "OpenCV: can't define safe CV_XADD macro for current platform (unsupported). Define CV_XADD macro through custom port header (see OPENCV_INCLUDE_PORT_FILE)"
#endif
#endif

/****************************************************************************************\
*                                  CV_NORETURN attribute *
\****************************************************************************************/

#ifndef CV_NORETURN
#if defined(__GNUC__)
#define CV_NORETURN __attribute__((__noreturn__))
#elif defined(_MSC_VER) && (_MSC_VER >= 1300)
#define CV_NORETURN __declspec(noreturn)
#else
#define CV_NORETURN /* nothing by default */
#endif
#endif

/****************************************************************************************\
*                       CV_NODISCARD_STD attribute (C++17) *
* encourages the compiler to issue a warning if the return value is discarded *
\****************************************************************************************/
#ifndef CV_NODISCARD_STD
#ifndef __has_cpp_attribute
//   workaround preprocessor non-compliance https://reviews.llvm.org/D57851
#define __has_cpp_attribute(__x) 0
#endif
#if __has_cpp_attribute(nodiscard)
#define CV_NODISCARD_STD [[nodiscard]]
#elif __cplusplus >= 201703L
   //   available when compiler is C++17 compliant
#define CV_NODISCARD_STD [[nodiscard]]
#elif defined(__INTEL_COMPILER)
// see above, available when C++17 is enabled
#elif defined(_MSC_VER) && _MSC_VER >= 1911 && _MSVC_LANG >= 201703L
//   available with VS2017 v15.3+ with /std:c++17 or higher; works on functions
//   and classes
#define CV_NODISCARD_STD [[nodiscard]]
#elif defined(__GNUC__) && (((__GNUC__ * 100) + __GNUC_MINOR__) >= 700) && (__cplusplus >= 201103L)
//   available with GCC 7.0+; works on functions, works or silently fails on
//   classes
#define CV_NODISCARD_STD [[nodiscard]]
#elif defined(__GNUC__) && (((__GNUC__ * 100) + __GNUC_MINOR__) >= 408) && (__cplusplus >= 201103L)
//   available with GCC 4.8+ but it usually does nothing and can fail noisily --
//   therefore not used define CV_NODISCARD_STD [[gnu::warn_unused_result]]
#endif
#endif
#ifndef CV_NODISCARD_STD
#define CV_NODISCARD_STD /* nothing by default */
#endif

/****************************************************************************************\
*                      CV_NODISCARD attribute (deprecated, GCC only) *
* DONT USE: use instead the standard CV_NODISCARD_STD macro above *
*           this legacy method silently fails to issue warning until some
version        *
*           after gcc 6.3.0. Yet with gcc 7+ you can use the above standard
method       *
*           which makes this method useless. Don't use it. *
* @deprecated use instead CV_NODISCARD_STD *
\****************************************************************************************/
#ifndef CV_NODISCARD
#if defined(__GNUC__)
#define CV_NODISCARD __attribute__((__warn_unused_result__))
#elif defined(__clang__) && defined(__has_attribute)
#if __has_attribute(__warn_unused_result__)
#define CV_NODISCARD __attribute__((__warn_unused_result__))
#endif
#endif
#endif
#ifndef CV_NODISCARD
#define CV_NODISCARD /* nothing by default */
#endif

/****************************************************************************************\
*                                    C++ 11 *
\****************************************************************************************/
#ifndef CV_CXX11
#if __cplusplus >= 201103L || (defined(_MSC_VER) && _MSC_VER >= 1800)
#define CV_CXX11 1
#endif
#else
#if CV_CXX11 == 0
#undef CV_CXX11
#endif
#endif
#ifndef CV_CXX11
#error "OpenCV 4.x+ requires enabled C++11 support"
#endif

#define CV_CXX_MOVE_SEMANTICS 1
#define CV_CXX_MOVE(x) std::move(x)
#define CV_CXX_STD_ARRAY 1
#include <array>
#ifndef CV_OVERRIDE
#define CV_OVERRIDE override
#endif
#ifndef CV_FINAL
#define CV_FINAL final
#endif

#ifndef CV_NOEXCEPT
#if __cplusplus >= 201103L || (defined(_MSC_VER) && _MSC_VER >= 1900 /*MSVS 2015*/)
#define CV_NOEXCEPT noexcept
#endif
#endif
#ifndef CV_NOEXCEPT
#define CV_NOEXCEPT
#endif

#ifndef CV_CONSTEXPR
#if __cplusplus >= 201103L || (defined(_MSC_VER) && _MSC_VER >= 1900 /*MSVS 2015*/)
#define CV_CONSTEXPR constexpr
#endif
#endif
#ifndef CV_CONSTEXPR
#define CV_CONSTEXPR
#endif

// Integer types portability
#ifdef OPENCV_STDINT_HEADER
#include OPENCV_STDINT_HEADER
#elif defined(__cplusplus)
#if defined(_MSC_VER) && _MSC_VER < 1600 /* MSVS 2010 */
namespace cv
{
typedef signed char int8_t;
typedef unsigned char uint8_t;
typedef signed short int16_t;
typedef unsigned short uint16_t;
typedef signed int int32_t;
typedef unsigned int uint32_t;
typedef signed __int64 int64_t;
typedef unsigned __int64 uint64_t;
}  // namespace cv
#elif defined(_MSC_VER) || __cplusplus >= 201103L
#include <cstdint>
namespace cv
{
using std::int16_t;
using std::int32_t;
using std::int64_t;
using std::int8_t;
using std::uint16_t;
using std::uint32_t;
using std::uint64_t;
using std::uint8_t;
}  // namespace cv
#else
#include <stdint.h>
namespace cv
{
typedef ::int8_t int8_t;
typedef ::uint8_t uint8_t;
typedef ::int16_t int16_t;
typedef ::uint16_t uint16_t;
typedef ::int32_t int32_t;
typedef ::uint32_t uint32_t;
typedef ::int64_t int64_t;
typedef ::uint64_t uint64_t;
}  // namespace cv
#endif
#else  // pure C
#include <stdint.h>
#endif

#ifdef __cplusplus
namespace cv
{

class float16_t
{
   public:
#if CV_FP16_TYPE

    float16_t() : h(0) {}
    explicit float16_t(float x) { h = (__fp16)x; }
    operator float() const { return (float)h; }
    static float16_t fromBits(ushort w)
    {
        Cv16suf u;
        u.u = w;
        float16_t result;
        result.h = u.h;
        return result;
    }
    static float16_t zero()
    {
        float16_t result;
        result.h = (__fp16)0;
        return result;
    }
    ushort bits() const
    {
        Cv16suf u;
        u.h = h;
        return u.u;
    }

   protected:
    __fp16 h;

#else
    float16_t() : w(0) {}
    explicit float16_t(float x)
    {
#if CV_FP16
        __m128 v = _mm_load_ss(&x);
        w = (ushort)_mm_cvtsi128_si32(_mm_cvtps_ph(v, 0));
#else
        Cv32suf in;
        in.f = x;
        unsigned sign = in.u & 0x80000000;
        in.u ^= sign;

        if (in.u >= 0x47800000)
            w = (ushort)(in.u > 0x7f800000 ? 0x7e00 : 0x7c00);
        else
        {
            if (in.u < 0x38800000)
            {
                in.f += 0.5f;
                w = (ushort)(in.u - 0x3f000000);
            }
            else
            {
                unsigned t = in.u + 0xc8000fff;
                w = (ushort)((t + ((in.u >> 13) & 1)) >> 13);
            }
        }

        w = (ushort)(w | (sign >> 16));
#endif
    }

    operator float() const
    {
#if CV_FP16
        float f;
        _mm_store_ss(&f, _mm_cvtph_ps(_mm_cvtsi32_si128(w)));
        return f;
#else
        Cv32suf out;

        unsigned t = ((w & 0x7fff) << 13) + 0x38000000;
        unsigned sign = (w & 0x8000) << 16;
        unsigned e = w & 0x7c00;

        out.u = t + (1 << 23);
        out.u = (e >= 0x7c00 ? t + 0x38000000
                 : e == 0    ? (static_cast<void>(out.f -= 6.103515625e-05f), out.u)
                             : t) |
                sign;
        return out.f;
#endif
    }

    static float16_t fromBits(ushort b)
    {
        float16_t result;
        result.w = b;
        return result;
    }
    static float16_t zero()
    {
        float16_t result;
        result.w = (ushort)0;
        return result;
    }
    ushort bits() const { return w; }

   protected:
    ushort w;

#endif
};

}  // namespace cv
#endif

//! @}

#ifndef __cplusplus
#include "opencv2/core/fast_math.hpp"  // define cvRound(double)
#endif

#endif  // OPENCV_CORE_CVDEF_H
